gdb: add target_ops::supports_displaced_step

[deliverable/binutils-gdb.git] / gdb / sparc64-sol2-tdep.c

diff --git a/gdb/sparc64-sol2-tdep.c b/gdb/sparc64-sol2-tdep.c
index 0c2b9016f2990390e42abc09dc0e81432784dd7c..550fed724fc3446ca79feafd82496b24a88b2b80 100644 (file)
--- a/gdb/sparc64-sol2-tdep.c
+++ b/gdb/sparc64-sol2-tdep.c
@@ -1,7 +1,6 @@
 /* Target-dependent code for Solaris UltraSPARC.
 
-   Copyright (C) 2003, 2004, 2006, 2007, 2008, 2009, 2010
-   Free Software Foundation, Inc.
+   Copyright (C) 2003-2020 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -26,15 +25,14 @@
 #include "objfiles.h"
 #include "osabi.h"
 #include "trad-frame.h"
-
-#include "gdb_assert.h"
+#include "regset.h"
 
 #include "sol2-tdep.h"
 #include "sparc64-tdep.h"
 #include "solib-svr4.h"
 
 /* From <sys/regset.h>.  */
-const struct sparc_gregset sparc64_sol2_gregset =
+const struct sparc_gregmap sparc64_sol2_gregmap =
 {
   32 * 8,                      /* "tstate" */
   33 * 8,                      /* %pc */
@@ -46,6 +44,58 @@ const struct sparc_gregset sparc64_sol2_gregset =
   16 * 8,                      /* %l0 */
   8                            /* sizeof (%y) */
 };
+
+const struct sparc_fpregmap sparc64_sol2_fpregmap =
+{
+  0 * 8,                       /* %f0 */
+  33 * 8,                      /* %fsr */
+};
+
+static void
+sparc64_sol2_supply_core_gregset (const struct regset *regset,
+                                 struct regcache *regcache,
+                                 int regnum, const void *gregs, size_t len)
+{
+  sparc64_supply_gregset (&sparc64_sol2_gregmap, regcache, regnum, gregs);
+}
+
+static void
+sparc64_sol2_collect_core_gregset (const struct regset *regset,
+                                  const struct regcache *regcache,
+                                  int regnum, void *gregs, size_t len)
+{
+  sparc64_collect_gregset (&sparc64_sol2_gregmap, regcache, regnum, gregs);
+}
+
+static void
+sparc64_sol2_supply_core_fpregset (const struct regset *regset,
+                                  struct regcache *regcache,
+                                  int regnum, const void *fpregs, size_t len)
+{
+  sparc64_supply_fpregset (&sparc64_sol2_fpregmap, regcache, regnum, fpregs);
+}
+
+static void
+sparc64_sol2_collect_core_fpregset (const struct regset *regset,
+                                   const struct regcache *regcache,
+                                   int regnum, void *fpregs, size_t len)
+{
+  sparc64_collect_fpregset (&sparc64_sol2_fpregmap, regcache, regnum, fpregs);
+}
+
+static const struct regset sparc64_sol2_gregset =
+  {
+    NULL,
+    sparc64_sol2_supply_core_gregset,
+    sparc64_sol2_collect_core_gregset
+  };
+
+static const struct regset sparc64_sol2_fpregset =
+  {
+    NULL,
+    sparc64_sol2_supply_core_fpregset,
+    sparc64_sol2_collect_core_fpregset
+  };
 \f
 
 static struct sparc_frame_cache *
@@ -57,7 +107,7 @@ sparc64_sol2_sigtramp_frame_cache (struct frame_info *this_frame,
   int regnum;
 
   if (*this_cache)
-    return *this_cache;
+    return (struct sparc_frame_cache *) *this_cache;
 
   cache = sparc_frame_cache (this_frame, this_cache);
   gdb_assert (cache == *this_cache);
@@ -67,7 +117,8 @@ sparc64_sol2_sigtramp_frame_cache (struct frame_info *this_frame,
   /* The third argument is a pointer to an instance of `ucontext_t',
      which has a member `uc_mcontext' that contains the saved
      registers.  */
-  regnum = (cache->frameless_p ? SPARC_O2_REGNUM : SPARC_I2_REGNUM);
+  regnum =
+    (cache->copied_regs_mask & 0x04) ? SPARC_I2_REGNUM : SPARC_O2_REGNUM;
   mcontext_addr = get_frame_register_unsigned (this_frame, regnum) + 64;
 
   cache->saved_regs[SPARC64_CCR_REGNUM].addr = mcontext_addr + 0 * 8;
@@ -130,7 +181,7 @@ sparc64_sol2_sigtramp_frame_sniffer (const struct frame_unwind *self,
                                     void **this_cache)
 {
   CORE_ADDR pc = get_frame_pc (this_frame);
-  char *name;
+  const char *name;
 
   find_pc_partial_function (pc, &name, NULL, NULL);
   if (sparc_sol2_pc_in_sigtramp (pc, name))
@@ -141,6 +192,7 @@ sparc64_sol2_sigtramp_frame_sniffer (const struct frame_unwind *self,
 static const struct frame_unwind sparc64_sol2_sigtramp_frame_unwind =
 {
   SIGTRAMP_FRAME,
+  default_frame_unwind_stop_reason,
   sparc64_sol2_sigtramp_frame_this_id,
   sparc64_sol2_sigtramp_frame_prev_register,
   NULL,
@@ -154,6 +206,12 @@ sparc64_sol2_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
 {
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
 
+  tdep->gregset = &sparc64_sol2_gregset;
+  tdep->sizeof_gregset = 304;
+
+  tdep->fpregset = &sparc64_sol2_fpregset;
+  tdep->sizeof_fpregset = 544;
+
   frame_unwind_append_unwinder (gdbarch, &sparc64_sol2_sigtramp_frame_unwind);
 
   sparc64_init_abi (info, gdbarch);
@@ -181,20 +239,13 @@ sparc64_sol2_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
   /* Solaris has kernel-assisted single-stepping support.  */
   set_gdbarch_software_single_step (gdbarch, NULL);
 
-  /* Solaris encodes the pid of the inferior in regset section
-     names.  */
-  set_gdbarch_core_reg_section_encodes_pid (gdbarch, 1);
-
   /* How to print LWP PTIDs from core files.  */
   set_gdbarch_core_pid_to_str (gdbarch, sol2_core_pid_to_str);
 }
-\f
-
-/* Provide a prototype to silence -Wmissing-prototypes.  */
-void _initialize_sparc64_sol2_tdep (void);
 
+void _initialize_sparc64_sol2_tdep ();
 void
-_initialize_sparc64_sol2_tdep (void)
+_initialize_sparc64_sol2_tdep ()
 {
   gdbarch_register_osabi (bfd_arch_sparc, bfd_mach_sparc_v9,
                          GDB_OSABI_SOLARIS, sparc64_sol2_init_abi);